Neeraj Anand, Param Anand

Anand Classes presents a comprehensive explanation of the Modern Periodic Table, authored by Neeraj Anand and published by Anand Technical Publishers. This detailed guide is tailored for students preparing for JEE, NEET, and Class 11 CBSE Chemistry, covering the fundamental concepts of the Modern Periodic Law, the structure of the periodic table, and the classification of elements into periods, groups, and blocks. With a focus on clarity, exam relevance, and NCERT alignment, this article serves as an essential resource for mastering one of the most important topics in inorganic chemistry.

ANAND CLASSES notes of s-block elements of the periodic table include all elements whose last electron enters the s-orbital. These elements, which consist of alkali metals (Group 1) and alkaline earth metals (Group 2), are highly significant in inorganic chemistry because of their reactivity, periodic trends, and wide applications in daily life. This article is authored by Neeraj Anand and published by Anand Technical Publishers to provide clear and exam-oriented explanations for JEE and NEET students, following the NCERT Class 11 Chemistry syllabus.

Anand Classes notes of p-Block elements in the modern periodic table consist of Groups 13 to 18, and they include some of the most important families such as the boron family, carbon family, nitrogen family, oxygen family (chalcogens), halogens, and noble gases. Their general electronic configuration is ns²np¹–⁶, which gives them a wide range of properties from highly reactive non-metals (like halogens) to completely inert noble gases. The p-Block contains a unique combination of metals, non-metals, and metalloids, and it plays a crucial role in Class 11 chemistry, JEE, and NEET exam preparation.

Anand Classes Class 11 Notes of Elements with atomic numbers greater than 100 are synthetic, man-made superheavy elements that do not occur naturally and are produced in laboratories or nuclear reactors. Since their discovery often led to naming disputes, the International Union of Pure and Applied Chemistry (IUPAC) introduced a systematic nomenclature based on the digits of the atomic number. According to this system, each digit is replaced with a specific prefix and the name ends with “-ium”, ensuring unique temporary names and symbols until permanent names are officially assigned.

Anand Classes Notes of d-Block elements, also known as transition elements, are located in Groups 3 to 12 of the …

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Anand Classes Notes of f-Block elements, also called inner-transition elements, are located separately at the bottom of the periodic table. In these elements, the f-subshell of the inner-penultimate shell ((n-2)f shell) is progressively filled while the outermost shells have similar configurations. These elements show unique physical and chemical properties and are important for JEE, NEET, and CBSE Class 11 Chemistry.

The periodic table is divided into four main blocks — s-block, p-block, d-block, and f-block elements — based on the type of orbital that receives the last electron. Each block has unique position, electronic configuration, properties, and examples, making their comparison important for Class 11 Chemistry, JEE, and NEET preparation. This comparison covers their position in the periodic table, oxidation states, reactivity, metallic character, and special properties in a clear tabular format along with FAQs for quick revision.

Anand Classes Notes of Metals, non-metals, and metalloids are distributed in the periodic table according to their electronic configuration and chemical properties. Metals occupy the left and central portions of the table, non-metals are located on the right side, and metalloids lie along the zig-zag line separating the two. Understanding their position helps explain periodic trends such as metallic and non-metallic character, reactivity, and the types of oxides they form — an important topic in Class 11 Chemistry, JEE, and NEET.

The period and group number of an element in the periodic table can be determined from its electronic configuration using specific rules for s-, p-, d-, and f-block elements. These rules depend on the principal quantum number (n), the distribution of electrons in the outermost orbitals, and the block to which the element belongs. Knowing these rules is essential for solving periodic table questions in Class 11 Chemistry, JEE, and NEET.

Anand Classes explains the number of elements in each period of the periodic table follows the pattern 2, 8, 8, 18, 18, 32, 32 due to the way electrons fill atomic orbitals according to the Aufbau principle and the (n + l) rule. Each period corresponds to the filling of a new principal energy level, and the number of elements in that period depends on the total electron capacity of the subshells being filled. Understanding this explains why the 1st period has only 2 elements, the 2nd and 3rd periods have 8 elements each, the 4th and 5th periods have 18, and the 6th and 7th periods have 32 elements — an important concept for Class 11 Chemistry, JEE, and NEET.